Composition for Manufacturing Secondary Battery Separator and Secondary Battery Including the Same

Active Publication Date: 2019-10-10
SK INNOVATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent aims to create a composition for making a secondary battery separator that improves electrical conductivity and workability while minimizing the occurrence of black scum. This will result in a better quality secondary battery.

Problems solved by technology

The remaining oil adversely affects performance of the final battery.
However, the naphthene oil or the aromatic oil has a problem in that black scum occurs according to charging and discharging at the electrode to thereby deteriorate the performance of the battery.

Method used

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  • Composition for Manufacturing Secondary Battery Separator and Secondary Battery Including the Same
  • Composition for Manufacturing Secondary Battery Separator and Secondary Battery Including the Same
  • Composition for Manufacturing Secondary Battery Separator and Secondary Battery Including the Same

Examples

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[0038]Hereinafter, constitution and function of the present disclosure will be described in more detail through preferable exemplary embodiments of the present disclosure. It is to be noted that Examples to be described below are provided merely for specifically exemplifying the present disclosure, and accordingly, the present disclosure is not limited to the following Examples.

[0039]Descriptions which are not described in the specification can be sufficiently and technically deduced by a person skilled in the technical field, and accordingly, details thereof will be omitted.

[0040]1. Preparation of Composition for Manufacturing Secondary Battery Separator

[0041]Compositions for manufacturing secondary battery separators according to Examples 1 to 23 and Comparative Examples 1 to 24 were prepared with the compositions shown in Tables 1 to 3.

TABLE 1(Unit: wt %)ClassificationExample 1Example 2Example 3Example 4Example 5Example 6Example 7Example 8Polyethylene20.020.020.020.020.020.020.02...

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Abstract

The present disclosure relates to a composition for manufacturing a secondary battery separator having excellent electrical conductivity and capable of minimizing occurrence of black scum on an electrode and a secondary battery thereof. The composition for manufacturing a secondary battery separator according to the present disclosure includes a polyethylene resin and an ionic liquid lubricant composition. The ionic liquid lubricant composition includes a pore-controlling agent, an ionic liquid, and paraffinic oil.

Description

BACKGROUND1. Technical Field[0001]The present disclosure relates to a composition for manufacturing a secondary battery separator and a secondary battery thereof, and more particularly, to a composition for manufacturing a secondary battery separator having excellent electrical conductivity and capable of minimizing occurrence of black scum on an electrode and a secondary battery thereof.2. Description of the Related Art[0002]A process oil used in manufacturing a lead-acid battery separator, which is one of secondary batteries, is extracted in an amount of about 85% in a manufacturing process and removed, and the remaining 15% of the oil remains as it is in a final product. The remaining oil adversely affects performance of the final battery. Accordingly, the process oil used in manufacturing the lead-acid battery separator has a great influence on not only performance of the separator but also performance and stability of the lead-acid battery.[0003]In general, naphthene oil or aro...

Claims

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Application Information

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IPC IPC(8): H01M2/14H01M2/16H01M10/04C08K3/22C08K3/36C08L91/00C08J9/00C08K5/19C08K5/50C08K5/42C08J5/18H01M50/403H01M50/417H01M50/443H01M50/489
CPCC08K5/42C08K2003/2227C08J2201/02C08K2003/2241C08K2003/2231C08K5/19H01M2/145C08J2323/06C08J5/18C08L91/00H01M10/04C08K5/50H01M2/166C08K3/36C08K2201/005C08K3/22C08J9/0038H01M10/06C08J2391/00C08J2423/06Y02E60/10H01M50/446H01M50/403Y02P70/50H01M50/417H01M50/443H01M50/489C08L23/04H01M50/431
Inventor LEE, HYEUNG-JINJUNG, HWAN-KYUKWAK, HYO-SHINSHIN, SANG-HYE
Owner SK INNOVATION CO LTD
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